How to ensure the coating effect?

Core tip: epoxy anti-corrosion paint and polyurethane anti-corrosion paint are considered as the most important two kinds of anti-corrosion paint Compared with the latter, epoxy anti-corrosion paint has stronger adhesion In addition to being used for anti-corrosion coating of large chemical equipment and internal and external walls of pipes, it can also be used for cement walls coated with epoxy primer and anti rust primer to enhance the adaptability of walls to harsh environment Today, I would like to share with you the construction requirements of epoxy anticorrosive paint, so as to better play the effect of anticorrosive paint 1 The components of epoxy anticorrosive paint can be divided into three categories: film-forming substances, secondary film-forming substances and solvent additives The film-forming material is the binder, and the ring Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Home of coatings: epoxy anti-corrosion paint and polyurethane anti-corrosion paint are considered to be the most important two kinds of anti-corrosion paint Compared with the latter, epoxy anti-corrosion paint has stronger adhesion In addition to being used for the anti-corrosion coating of large chemical equipment and internal and external walls of pipelines, it can also be used for the cement coated with epoxy primer and anti-corrosion primer Wall, enhance the adaptability of the wall to the harsh environment Today, I would like to share with you the construction requirements of epoxy anticorrosive paint, so as to better play the effect of anticorrosive paint 1 The components of epoxy anticorrosive paint can be divided into three categories: film-forming substances, secondary film-forming substances and solvent additives The film-forming material is the binder, which is mainly epoxy resin The film-forming material is formed when it is mixed with curing agent in a certain proportion The secondary film-forming substances are mainly used to increase the film thickness and waterproof performance, while the antirust pigments are mainly used in primer and antirust paint to enhance the service life The coating shall be thoroughly stirred until there is no deposit at the bottom of the barrel, and the coating shall be fully stirred at the ratio of 10:1 (weight ratio) of the coating and the curing agent for 10-15 minutes, and then used; if the temperature is lower than 10 ℃, the winter curing agent shall be added at the ratio of 4:1 (weight ratio) of the coating and the curing agent, and it is better to make a small range of curing attempt after the formula is prepared; 2 If the surface treatment is to paint the metal surface, sand blasting and shot blasting shall reach the international Sa2.5 level (indicating the rust removal level of the steel surface, which shall reach a very thorough spray or spray rust removal) The surface of the coating object shall be free of visible high-quality, dirt and other attachments After oil removal, necessary cleaning shall be carried out to keep the surface dry and coating shall be carried out within 4 hours If the concrete is to be coated, the surface shall be cleaned before air drying until the water content is less than or equal to 10%; 3 The paint prepared within the service life shall be used up in about 2 hours (20 ℃) Never pour the unused primer into the original paint again; 4 The coating thickness shall be high-pressure airless spraying and airy spraying, the dry film thickness is about 60 microns, and the dry film thickness is 55 microns by hand brushing; 5 The consumption of general primer in theory is about 0.2kg/m2 without considering the influence of coating environment, coating method, coating technology, surface condition, structure, shape, surface area and other factors during actual construction; 6 In order to make the coating flat, it is better to use high-pressure airless spraying Under the condition of airless spraying without high-pressure, airless spraying can be selected, and manual painting can be used as the third coating method 7 If the coating is too thick, special diluent can be added appropriately, with the dosage of 3-10% 8 Tool cleaning can be cleaned with special diluent If the ambient temperature is lower than 10 ℃, it shall be extended properly; 9 After finishing the last finishing coat, it shall be naturally solidified for 7 days before it is put into use The above is the construction requirements of epoxy anticorrosive paint In order to achieve the best effect of the paint, both the preparation and coating conditions should be as close as possible to the required standards Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,